﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Count
{
	class Count
	{
		//计算圆的面积方法
		public static double Countmj(double a)
		{
			return 3.14 * a * a;
		}
		//计算长方形的面积方法
		public static double Countmj(double a, double b)
		{
			return a * b;
		}

	}
}
